2211422142402 has 144 divisors (see below), whose sum is σ = 5409342746496. Its totient is φ = 647515252800.

The previous prime is 2211422142389. The next prime is 2211422142403. The reversal of 2211422142402 is 2042412241122.

2211422142402 is a `hidden beast` number, since 2 + 2 + 1 + 1 + 42 + 214 + 2 + 402 = 666.

2211422142402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2211422142403) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 128809623 + ... + 128826789.

It is an arithmetic number, because the mean of its divisors is an integer number (37564880184).

Almost surely, 2^{2211422142402} is an apocalyptic number.

2211422142402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211422142402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2704671373248).

2211422142402 is an abundant number, since it is smaller than the sum of its proper divisors (3197920604094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211422142402 is a wasteful number, since it uses less digits than its factorization.

2211422142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17925 (or 17891 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 2211422142402 its reverse (2042412241122), we get a palindrome (4253834383524).

The spelling of 2211422142402 in words is "two trillion, two hundred eleven billion, four hundred twenty-two million, one hundred forty-two thousand, four hundred two".